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Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance
OBJECTIVE: To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. METHODS: In May 2019, a total of 6120 people were in...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702317/ https://www.ncbi.nlm.nih.gov/pubmed/34956396 http://dx.doi.org/10.1155/2021/3656831 |
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author | Zhang, Ya Su, Ming Liu, Hua Song, Yanxia Liu, Jing Sun, Huihui Wu, Xueya Yang, Xiaoge Qi, Liqin Du, Feifan Liu, Lili Chen, Lu Huang, Jing Guo, Xiting Yang, Zhongnan Yang, Xueping |
author_facet | Zhang, Ya Su, Ming Liu, Hua Song, Yanxia Liu, Jing Sun, Huihui Wu, Xueya Yang, Xiaoge Qi, Liqin Du, Feifan Liu, Lili Chen, Lu Huang, Jing Guo, Xiting Yang, Zhongnan Yang, Xueping |
author_sort | Zhang, Ya |
collection | PubMed |
description | OBJECTIVE: To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. METHODS: In May 2019, a total of 6120 people were inspected in 68 kindergartens in 11 cities in Hebei Province. Child refractive refraction was checked under noncycloplegia using a handheld binocular vision screener (SW-800, SUOER, Tianjin, China). Axial length (AL) and corneal radius of curvature (CR) were measured using an ocular biometry (IOLMaster 500, Carl Zeiss, Germany). Myopia was defined as spherical equivalent (SE) ≤ −0.75 D. RESULTS: A total of 5506 children aged 3-6 years met the criteria and were included in the statistical analysis. The prevalence of myopia was 3.49% (1.93% at age 3, 2.90% at age 4, 3.78% at age 5, and 3.88% at age 6). Overall, the mean SE was +0.67 ± 1.05 D (+0.81 ± 1.00 D at age 3, +0.79 ± 1.05 D at age 4, +0.67 ± 1.08 D at age 5, and +0.13 ± 1.01 D at age 6); the mean CR was 7.76 ± 0.26 mm (7.78 ± 0.26 mm at age3, 7.75 ± 0.25 mm at age 4, 7.77 ± 0.26 mm at age 5, and 7.76 ± 0.25 mm at age 6); the mean AL was 22.31 ± 0.73 mm (21.98 ± 0.63 mm at age 3, 22.12 ± 0.69 mm at age 4, 22.34 ± 0.73 mm at age 5, and 22.49 ± 0.73 mm at age 6). CONCLUSIONS: Prevalence of myopia increases with age in children aged 3-6 years in Hebei, China. With the increase of age, CR is basically stable, and AL increases gradually. AL/CR, which is closely related to SE, can be used as an indicator to predict myopia and guide clinical work. |
format | Online Article Text |
id | pubmed-8702317 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-87023172021-12-24 Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance Zhang, Ya Su, Ming Liu, Hua Song, Yanxia Liu, Jing Sun, Huihui Wu, Xueya Yang, Xiaoge Qi, Liqin Du, Feifan Liu, Lili Chen, Lu Huang, Jing Guo, Xiting Yang, Zhongnan Yang, Xueping Comput Math Methods Med Research Article OBJECTIVE: To investigate refractive development and prevalence of myopia in children aged 3-6 years in Hebei Province, China, and to explore the developmental law of refraction, so as to clinically guide the prediction and intervention of myopia. METHODS: In May 2019, a total of 6120 people were inspected in 68 kindergartens in 11 cities in Hebei Province. Child refractive refraction was checked under noncycloplegia using a handheld binocular vision screener (SW-800, SUOER, Tianjin, China). Axial length (AL) and corneal radius of curvature (CR) were measured using an ocular biometry (IOLMaster 500, Carl Zeiss, Germany). Myopia was defined as spherical equivalent (SE) ≤ −0.75 D. RESULTS: A total of 5506 children aged 3-6 years met the criteria and were included in the statistical analysis. The prevalence of myopia was 3.49% (1.93% at age 3, 2.90% at age 4, 3.78% at age 5, and 3.88% at age 6). Overall, the mean SE was +0.67 ± 1.05 D (+0.81 ± 1.00 D at age 3, +0.79 ± 1.05 D at age 4, +0.67 ± 1.08 D at age 5, and +0.13 ± 1.01 D at age 6); the mean CR was 7.76 ± 0.26 mm (7.78 ± 0.26 mm at age3, 7.75 ± 0.25 mm at age 4, 7.77 ± 0.26 mm at age 5, and 7.76 ± 0.25 mm at age 6); the mean AL was 22.31 ± 0.73 mm (21.98 ± 0.63 mm at age 3, 22.12 ± 0.69 mm at age 4, 22.34 ± 0.73 mm at age 5, and 22.49 ± 0.73 mm at age 6). CONCLUSIONS: Prevalence of myopia increases with age in children aged 3-6 years in Hebei, China. With the increase of age, CR is basically stable, and AL increases gradually. AL/CR, which is closely related to SE, can be used as an indicator to predict myopia and guide clinical work. Hindawi 2021-12-16 /pmc/articles/PMC8702317/ /pubmed/34956396 http://dx.doi.org/10.1155/2021/3656831 Text en Copyright © 2021 Ya Zhang et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Zhang, Ya Su, Ming Liu, Hua Song, Yanxia Liu, Jing Sun, Huihui Wu, Xueya Yang, Xiaoge Qi, Liqin Du, Feifan Liu, Lili Chen, Lu Huang, Jing Guo, Xiting Yang, Zhongnan Yang, Xueping Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance |
title | Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance |
title_full | Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance |
title_fullStr | Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance |
title_full_unstemmed | Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance |
title_short | Development of Refractive Parameters in 3- to 6-Year-Old Children and Its Application in Myopia Prediction and Intervention Guidance |
title_sort | development of refractive parameters in 3- to 6-year-old children and its application in myopia prediction and intervention guidance |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8702317/ https://www.ncbi.nlm.nih.gov/pubmed/34956396 http://dx.doi.org/10.1155/2021/3656831 |
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